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Toshiba Regza 42WLG66, Service Manual

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SERVICE MANUAL 

 

LCD Color Television

42WLG66

Ver. 1

This model is classified as a 

green product

 (*1), as indicated by the underlined serial number. 

This Service Manual describes replacement parts for the green product. When repairing this 
green product, use the part(s) described in this manual and 

lead-free solder

 (*2). 

For (*1) and (*2), refer to 

GREEN PRODUCT PROCUREMENT

 and 

LEAD-FREE 

SOLDER

. 

 

© TOSHIBA CORPORATION

  

Page 1 sur 1

26/06/10

file://I:\42WLG66-01\html\!!fcover.html

Summary of Contents for Regza 42WLG66

Page 1: ...d serial number This Service Manual describes replacement parts for the green product When repairing this green product use the part s described in this manual and lead free solder 2 For 1 and 2 refer to GREEN PRODUCT PROCUREMENT and LEAD FREE SOLDER TOSHIBA CORPORATION Page 1 sur 1 26 06 10 file I 42WLG66 01 html fcover html ...

Page 2: ...tion with or as a result of such modification or alteration THE INFORMATION OR DATA HEREIN SHALL BE PROVIDED AS IS WITHOUT ANY WARRANTY OF ANY KIND EITHER EXPRESS OR IMPLIED WARRANTY OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE Toshiba shall not be liable for any damages losses expenses or costs if any incurred in connection with or as a result of use of any information or data provided...

Page 3: ...to issues related to the global environmental Toshiba Corporation recognizes environmental protection as a key management tasks and is doing its utmost to enhance and improve the quality and scope of its environmental activities In line with this Toshiba proactively promotes Green Procurement and seeks to purchase and use products parts and materials that have low environmental impacts Green procu...

Page 4: ...Use of a soldering iron designed for lead based solders to repair product made with lead free solder may result in damage to the component and or PCB being soldered Great care should be made to ensure high quality soldering when servicing this product especially when soldering large components through hole pins and on PCBs as the level of heat required to melt lead free solder is high WARNING This...

Page 5: ...sformer or wear suitable gloves when servicing with the power on and disconnect the power plug to avoid electrical shock when replacing parts In some cases alternating current is also impressed in the chassis so electrical shock is possible if the chassis is contacted with the power on 6 Always use the replacement parts specified for the particular model when making repairs The parts used in produ...

Page 6: ...re assembling the external casing after a repairing completed Do not allow internal wiring to be pinched by cabinets panels etc Any error in reassembly or wiring can result in electrical leakage flame etc and may be hazardous 9 NEVER remodel the product in any way Remodeling can result in improper operation malfunction or electrical leakage and flame which may be hazardous 10 Touch current check A...

Page 7: ...curve as a function of frequency TOUCH CURRENT 500 peak value V Voltmeter or oscilloscope r m s or peak reading The part or contact of a TERMINAL is not HAZARDOUS LIVE if Note The limit values of 0 35 V peak for a c and 1 0 V for d c correspond to the values 0 7 mA peak a c and 2 0 mA d c a The open circuit voltage should not exceed 35 V peak a c or 60 V d c or if a is not met b The measurement of...

Page 8: ...al safety characteristics are identified in this manual and its supplements electrical components having such features are identified by the international hazard symbols on the schematic diagram and the parts list Before replacing any of these components read the parts list in this manual carefully The use of substitute replacement parts which do not have the same safety characteristics as specifi...

Page 9: ... The LCD module can easily be damaged during disassembly or reassembly therefore always observe the following precautions when handling the module 1 When attaching the LCD module to the LCD cover position it appropriately and fasten at the position where the display can be viewed most conveniently 2 Carefully align the holes at all four corners of the LCD module with the corresponding holes in the...

Page 10: ...er on the cloth Do not drop the cleaner on the panel Pay attention not to scratch the panel surface 4 Leaving water or other fluids on the panel screen for an extended period of time can result in discoloration or stripes Immediately remove any type of fluid from the screen 5 Glass is used in the panel so do not drop or strike with hard objects Such actions can damage the panel Page 2 sur 4 Handli...

Page 11: ...t rays for an extended period of time 8 Do not store the LCD module below the temperature conditions described in the specifications Failure to do so could result in freezing of the liquid crystal due to cold air or loss of resilience or other damage 9 Do not disassemble the LCD module Such actions could result in improper operation Page 3 sur 4 Handling the LCD Module 26 06 10 file I 42WLG66 01 h...

Page 12: ...le do not use packing containing epoxy resin amine or silicon resin alcohol or oxim The gas generated by these materials can cause loss of polarity Page 4 sur 4 Handling the LCD Module 26 06 10 file I 42WLG66 01 html handling_lcd html ...

Page 13: ...AV REG ULATO R PO W ER B B 23P B B B B 9P 13P D I G I TAL UNI T B B 13P C ortez Pl us B B 23P B B 50P PC M C I A C ARD F AV LED KEY SI G NAL B 002 D i gi talUni t U 01A Pow er U01B LO W B U02A AV TERM U02B U 02C U 02D U 03A SI G NAL U02F ...

Page 14: ...AD GPI Digital Input A Digital Input B 2nd Channel Process Cortez Regulator EEPROM DDR RAM FLASH ROM I2C I2C SIGNAL BOARD I2C FLI8538 Input Terminal Video CVBS S VIDEO YCbCr PC IN Low B POWER BOARD Sound AMP AC INPUT Power AV BOARD TIF PANEL PANEL I F Standby uCON HDMI MTS APRO MSP PLL VOC SPEAKER DAC AMP HP_AMP Headphone Input Terminal Audio CVBS L R S VIDEO L R YCbCr L R PC_IN L R SW ...

Page 15: ...rnational hazard symbols in the schematic diagram and the parts list designate components which have special characteristics important for safety and should be replaced only with types identical to those in the original circuit or specified in the parts list The mounting position of replacements is to be identical with originals Before replacing any of these components read carefully the SAFETY PR...

Page 16: ...ad with DIGITAL MULTI METER from point indicated to chassis ground using a color bar signal with all controls at normal line voltage at nominal AC volts 5 Waveforms are taken receiving color bar signal with enough sensitivity 6 Voltage reading shown are nominal values and may vary 20 except H V Electrolytic capacitor Mylar capacitor Page 2 sur 2 26 06 10 file I 42WLG66 01 html c_precaution html ...

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